EIGM stands for Electronic Ignition Module. It is an essential component in an automotive ignition system that controls the ignition timing and firing of the spark plugs. The EIGM is responsible for generating the high voltage needed to ignite the air-fuel mixture in the engine's combustion chamber.
Specifically, the EIGM receives signals from various sensors in the engine, such as the crankshaft position sensor and the camshaft position sensor, to determine the precise timing and sequence of the ignition spark. It converts these electrical signals into commands for the ignition coil, which then produces the high voltage necessary to create a spark across the spark plug gap.
By accurately timing the spark, the EIGM ensures optimal engine performance, fuel efficiency, and emission control. It also provides enhanced reliability and durability compared to traditional mechanical ignition systems.
In addition to its primary function of controlling ignition timing, the EIGM may incorporate other features, such as diagnostic capabilities to detect and report any potential issues with the ignition system. It might also incorporate fail-safe mechanisms to prevent damage to the engine or catalytic converter in the event of a malfunction.
Overall, the EIGM plays a vital role in the smooth operation of a vehicle's ignition system, and its proper functioning is crucial for efficient combustion, power delivery, and overall performance of the engine.
